Environmental Protection Agency September 2, 2011 – Federal Register Recent Federal Regulation Documents

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Virginia. The revision establishes the addition of nitrogen oxides (NOX) as a precursor to ozone in Virginia for permits of major stationary sources or major modifications locating in Prevention of Significant Deterioration (PSD) areas. EPA is approving the addition of NOX as a precursor to ozone based on the Virginia regulations dated December 31, 2008. A previous PSD program approval of Virginia's Chapter 80, Article 8 regulations was provided to the Commonwealth as a ``limited approval'' for reasons that will not deny this action as being fully approved. This revision to add NOX as a precursor to ozone is in accordance with the requirements of the Clean Air Act (CAA).